Issue #3245880: Oracle driver need upgrade as a normal module, and compatible with drupal up to 9.2

src/Driver/Database/oracle/Install/OracleInitial.php

 <?php
 
-namespace Drupal\Driver\Database\oracle\Install;
-
-use Drupal\Core\Database\Install\Tasks as InstallTasks;
-use Drupal\Core\Database\Database;
-use Drupal\Driver\Database\oracle\Connection;
+namespace Drupal\oracle\Driver\Database\oracle\Install;
 
 /**
- * Specifies installation tasks for Oracle and equivalent databases.
+ * Generate oracle database macros.
  */
-class Tasks extends InstallTasks {
-
-  /**
-   * {@inheritdoc}
-   */
-  protected $pdoDriver = 'oci';
+class OracleInitial {
 
-  /**
-   * {@inheritdoc}
-   */
   private $pdoBindLengthLimits = array(4000, 1332, 665);
 
-  /**
-   * {@inheritdoc}
-   */
-  public function name() {
-    return t('Oracle');
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function minimumVersion() {
-
-    // @TODO: add version validation.
-    return NULL;
-  }
+  protected $connection;
 
-  /**
-   * {@inheritdoc}
-   */
-  public function getFormOptions(array $database) {
-    $form = parent::getFormOptions($database);
-    if (empty($form['advanced_options']['port']['#default_value'])) {
-      $form['advanced_options']['port']['#default_value'] = '1521';
-    }
-    return $form;
+  public function __construct($connection) {
+    $this->connection = $connection;
   }
 
-  /**
-   * {@inheritdoc}
-   */
-  protected function connect() {
-    try {
-      // This doesn't actually test the connection.
-      Database::setActiveConnection();
-
-      $dir = DRUPAL_ROOT . '/drivers/lib/Drupal/Driver/Database/oracle/resources';
-      $this->determineSupportedBindSize();
-      $this->createFailsafeObjects("{$dir}/table");
-      $this->createFailsafeObjects("{$dir}/index");
-      $this->createFailsafeObjects("{$dir}/sequence");
-      $this->createObjects("{$dir}/function");
-      $this->createObjects("{$dir}/procedure");
-      $this->createSpObjects("{$dir}/type");
-      $this->createSpObjects("{$dir}/package");
-      $this->oracleQuery("begin dbms_utility.compile_schema(user); end;");
-
-      $this->pass('Oracle has initialized itself.');
-      Database::getConnection('default')->makePrimary();
-    }
-    catch (\Exception $e) {
-      if ($e->getCode() == Connection::DATABASE_NOT_FOUND) {
-
-        // Remove the database string from connection info.
-        $connection_info = Database::getConnectionInfo();
-        $database = $connection_info['default']['database'];
-        unset($connection_info['default']['database']);
-        $this->fail(t('Database %database not found. The server reports the following message when attempting to create the database: %error.', array('%database' => $database, '%error' => $e->getMessage())));
-      }
-      return FALSE;
-    }
-    return TRUE;
+  public function initial() {
+    $dir = __DIR__ . '/../resources';
+    $this->determineSupportedBindSize();
+    $this->createFailsafeObjects("{$dir}/table");
+    $this->createFailsafeObjects("{$dir}/index");
+    $this->createFailsafeObjects("{$dir}/sequence");
+    $this->createObjects("{$dir}/function");
+    $this->createObjects("{$dir}/procedure");
+    $this->createSpObjects("{$dir}/type");
+    $this->createSpObjects("{$dir}/package");
+    $this->oracleQuery("begin dbms_utility.compile_schema(user); end;");
   }
 
   /**
    * Oracle helper for install tasks.
    */
   private function oracleQuery($sql, $args = NULL) {
-    return Database::getConnection()->queryOracle($sql, $args);
+    return $this->connection->queryOracle($sql, $args);
   }
 
   /**
@@ -224,5 +168,4 @@ class Tasks extends InstallTasks {
     }
     return FALSE;
   }
-
 }